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Merge core:simd/util into core:bytes

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Feoramund
2024-08-10 07:17:03 -04:00
parent e7e7fe766a
commit c69fa87d53
8 changed files with 164 additions and 246 deletions
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core/strings/strings.odin
+3 -32
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@@ -2,8 +2,8 @@
package strings
import "base:intrinsics"
import "core:bytes"
import "core:io"
@require import simd_util "core:simd/util"
import "core:mem"
import "core:unicode"
import "core:unicode/utf8"
@@ -1426,23 +1426,7 @@ Output:
*/
index_byte :: proc(s: string, c: byte) -> (res: int) {
_index_byte :: #force_inline proc "contextless" (s: string, c: byte) -> int {
for i := 0; i < len(s); i += 1 {
if s[i] == c {
return i
}
}
return -1
}
// NOTE(Feoramund): On my Alder Lake CPU, I have only witnessed a
// significant speedup when compiling in either Size or Speed mode.
// The SIMD version is usually 2-3x slower without optimizations on.
when ODIN_OPTIMIZATION_MODE > .Minimal {
return #force_inline simd_util.index_byte(transmute([]u8)s, c)
} else {
return _index_byte(s, c)
}
return #force_inline bytes.index_byte(transmute([]u8)s, c)
}
/*
Returns the byte offset of the last byte `c` in the string `s`, -1 when not found.
@@ -1477,20 +1461,7 @@ Output:
*/
last_index_byte :: proc(s: string, c: byte) -> (res: int) {
_last_index_byte :: #force_inline proc "contextless" (s: string, c: byte) -> int {
for i := len(s)-1; i >= 0; i -= 1 {
if s[i] == c {
return i
}
}
return -1
}
when ODIN_OPTIMIZATION_MODE > .Minimal {
return #force_inline simd_util.last_index_byte(transmute([]u8)s, c)
} else {
return _last_index_byte(s, c)
}
return #force_inline bytes.last_index_byte(transmute([]u8)s, c)
}
/*
Returns the byte offset of the first rune `r` in the string `s` it finds, -1 when not found.